The human skull is a bony structure that forms the head and protects the brain. It consists of 22 bones, which are divided into two main parts: the cranium, which encases the brain, and the facial bones, which shape the face. The skull also provides attachment points for muscles that control facial expressions and assist in chewing. In addition to protection, the skull plays a crucial role in supporting the structures of the head, including the eyes, nose, and mouth. It contains several cavities, such as the sinuses, which help reduce weight and improve voice resonance. Overall, the human skull is essential for both protection and function.